There is no picture added. I can not help with that then.
Answer:
or 200.173913
Step-by-step explanation:

Answer:
m=

Step-by-step explanation:
Slope of a line is the co efficient of x in the given line.

Answer: -1
Step-by-step explanation:
Answer:
The 99% confidence interval for the population mean is 22.96 to 26.64
Step-by-step explanation:
Consider the provided information,
A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,
The confidence interval if 99%.
Thus, 1-α=0.99
α=0.01
Now we need to determine 
Now by using z score table we find that 
The boundaries of the confidence interval are:

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64